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Elm Hole


NGR: SO 21501 12457
209 m.asl

Monmouthshire , Northern Outcrop - East (Morlais to Abergavenny)
 map using leaflet map:
Rising
Access Very small entrance under a tree on the left bank of the Clydach River, 60m upstream of Devil's Bridge.
Description Although of short length (only the first 70m are accessible to non divers), it is an important site as it provides an underwater connection to Pwll-y-Cwm and the downstream end of the Daren Cilau system.
History HCC, 1961. Connection to Daren Cilau mad by CDG in 1986
Hydrology Tests
Conservation SSSI: 80 Mynyddoedd Llangynidr a Llangatwg, Cefn yr Ystrad a Chomin Merthyr (Mixed) GCR: 554 Biological records
Gallery

Martin Laverty
2022
Brendan Marris
2008
Survey
CSS Records (19), 1992
References
HCC Newsletter 14, 7, 19, 1961
A Caver's View of the Clydach River (Cwmbran Caving Club, 1986), Schuurmans, T.
Caves of South Wales, Stratford, T., 1995
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Cambrian Cave Registry entry 835
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